Senior Backend Developer - Mobile

DCV Technologies; Ringway; Hybrid; GBP 80,000 - 100,000; Full time

Job summary

A technology solutions provider in Ringway is seeking a Senior Mobile Backend Developer to build scalable backend services for cloud-native platforms. This hands-on role is centered around Java/Kotlin microservices and secure API design. The ideal candidate will have strong experience in backend development, with knowledge of AWS and microservices architecture. This contract position offers a hybrid working model and competitive market rates, ideal for those with a passion for innovative technology in regulated environments.

Benefits

Competitive market rates

Hybrid working

Qualifications

• Strong backend development experience with Java and/or Kotlin.
• Experience with Spring Boot, REST APIs, and microservices architecture.
• Familiarity with secure API design and OAuth authentication.

Responsibilities

• Design and build scalable backend services using Java or Kotlin.
• Develop secure, mobile-facing APIs using OAuth 2.0.
• Work with microservices and event-driven architectures.

Skills

Java

Kotlin

Spring Boot

REST APIs

Microservices architecture

AWS

Secure API design

OAuth

Problem-solving skills

Communication skills

Job description

Senior Mobile Backend Developer (Java / Kotlin, AWS, Microservices) - Contract

We are hiring a Senior Mobile Backend Developer to work on high-scale, cloud-native platforms supporting mobile applications in a regulated environment.

This is a hands-on backend role focused on Java/Kotlin microservices, secure API design, and cloud delivery. You will contribute across the full SDLC while influencing engineering standards, best practices, and technical quality.

Key Responsibilities

• Design and build scalable backend services using Java or Kotlin and Spring Boot
• Develop secure, mobile-facing APIs using OAuth 2.0 and modern authentication patterns
• Work with microservices and event-driven architectures
• Deploy and support services in AWS / cloud environments
• Apply TDD / BDD and automation testing to deliver high-quality code
• Collaborate with engineers, technical leads, and stakeholders across delivery teams
• Mentor peers and contribute to continuous improvement initiatives

Required Skills & Experience

• Strong backend development experience with Java and/or Kotlin
• Spring Boot, REST APIs, microservices architecture
• Secure API design, OAuth, authentication/authorisation
• AWS or cloud platform experience
• Event-driven systems and distributed architectures
• Experience working in financial services or regulated environments
• Strong problem-solving and communication skills

Contract Details

• Contract role
• Hybrid working
• Competitive market rates

If you are a senior backend engineer looking to work on cloud-first, mobile-enabled platforms with real technical ownership, apply now